For IO/sec statistics I think MutableCounterLongRate andMutableCounterLong more useful than others and for xceiver threadnumber I'm not bit sure right now.

ThanksJiitendraOn Fri, Aug 30, 2013 at 1:40 PM, lei liu <[EMAIL PROTECTED]> wrote:>> Hi Jitendra,> If I want to statistics number of bytes read per second,and display the result into ganglia, should I use MutableCounterLong or MutableGaugeLong?>> If I want to display current xceiver thread number in datanode into ganglia, should I use MutableCounterLong or MutableGaugeLong?>> Thanks,> LiuLei>>> 2013/8/30 Jitendra Yadav <[EMAIL PROTECTED]>>>>> Hi,>>>> Below link contains the answer for your question.>>>> http://hadoop.apache.org/docs/r1.2.0/api/org/apache/hadoop/metrics2/package-summary.html>>>> Regards>> Jitendra>>>> On Fri, Aug 30, 2013 at 11:35 AM, lei liu <[EMAIL PROTECTED]> wrote:>>>>>> I use the metrics v2, there are COUNTER and GAUGE metric type in metrics v2.>>> What is the difference between the two？>>>>>> Thanks,>>> LiuLei>>>>>